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Background: Patients with systemic lupus erythematosus (SLE) have a higher risk for cardiovascular disease (CVD), not fully explained by the conventional risk factors. These patients have endothelial dysfunction (ED) as an early process of atherosclerosis, which can be reversed with therapy., Objective: To determine the effect of ezetimibe plus pravastatin on endothelial function in patients with SLE after 12 months of treatment., Patients and Methods: An open study, before and after, which assessed the effect of ezetimibe plus pravastatin treatment, was performed. Twenty two patients (21 women and one man) with diagnosis of SLE were studied, with a mean age 40 ± 5 years. Endothelial dysfunction was evaluated using vascular ultrasound of the brachial artery in order to measure the flow-mediated vasodilation (FMV) basal and after 12 months of treatment with pravastatin 40 mg/day plus ezetimibe 10 mg/day. In addition, a lipid profile: total cholesterol (TC), HDL-cholesterol (HDL-C), LDL-cholesterol (LDL-C), and serum C-reactive protein (CRP), was done., Results: We found a basal FMV of 7.58% and 18.22% after 12 months of treatment, with an improvement of 10.64 points 95% CI (7.58-13.58), p < 0.001. TC decreased from 201.3 ± 58.9 mg/dL to 158.06 ± 50.13 mg/dL (p < 0.01); LDL-C from 125.78 ± 44.4 mg/dL to 78.8 ± 32.9 mg/dL (p < 0.001); HDL-C increased from 49.0 ± 16.8 mg/dL to 52.2 ± 13.8 mg/dL (p = 0.077). The basal and final concentrations of CRP were 4.49 and 2.8, respectively, with a mean decrease of 2.11 mg/dL, 95% CI (0.908-3.32), p < 0.002. Both drugs were well tolerated., Conclusion: Ezetimibe plus pravastatin significantly improved FMV in patients with SLE, decreasing ED and the lipid profile. This treatment ameliorated an early process of atherosclerosis and a risk factor for CVD., (© The Author(s) 2016.)